111400432 has 80 divisors (see below), whose sum is σ = 255921120. Its totient is φ = 46310400.

The previous prime is 111400427. The next prime is 111400433. The reversal of 111400432 is 234004111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111400433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413994 + ... + 414262.

It is an arithmetic number, because the mean of its divisors is an integer number (3199014).

Almost surely, 2^111400432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111400432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127960560).

111400432 is an abundant number, since it is smaller than the sum of its proper divisors (144520688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111400432 is a wasteful number, since it uses less digits than its factorization.

111400432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 111400432 is about 10554.6403065192. The cubic root of 111400432 is about 481.1667680425.

Adding to 111400432 its reverse (234004111), we get a palindrome (345404543).

The spelling of 111400432 in words is "one hundred eleven million, four hundred thousand, four hundred thirty-two".